WO2016052709A1 - Dispositif d'antenne - Google Patents

Dispositif d'antenne Download PDF

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Publication number
WO2016052709A1
WO2016052709A1 PCT/JP2015/077971 JP2015077971W WO2016052709A1 WO 2016052709 A1 WO2016052709 A1 WO 2016052709A1 JP 2015077971 W JP2015077971 W JP 2015077971W WO 2016052709 A1 WO2016052709 A1 WO 2016052709A1
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WO
WIPO (PCT)
Prior art keywords
antenna device
vehicle
antenna
conductor
current
Prior art date
Application number
PCT/JP2015/077971
Other languages
English (en)
Japanese (ja)
Inventor
和彦 庭野
井川　耕司
Original Assignee
旭硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 旭硝子株式会社 filed Critical 旭硝子株式会社
Priority to EP15847720.8A priority Critical patent/EP3203578B1/fr
Priority to JP2016552164A priority patent/JP6620752B2/ja
Priority to CN201580052996.3A priority patent/CN106716711B/zh
Publication of WO2016052709A1 publication Critical patent/WO2016052709A1/fr
Priority to US15/458,629 priority patent/US10651535B2/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to an antenna device disposed in a vehicle interior and a vehicle-mounted antenna equipped with the antenna device.
  • a vehicle is equipped with an antenna for receiving radio broadcasts and an antenna for receiving TV broadcasts.
  • an antenna for receiving radio broadcasts and an antenna for receiving TV broadcasts.
  • ITS Intelligent Transport Systems
  • a vehicle antenna having an antenna pattern provided in parallel with the window glass surface at a position where the base of the room mirror on the indoor upper side of the window glass of the vehicle is bonded (patented) Document 1), or a first radiating conductor and a second radiating conductor, the first radiating conductor is formed on the interior side surface of the vehicle window glass, and the second radiating conductor forms a predetermined angle.
  • Patent Document 2 bent inside the vehicle is disclosed.
  • the problem to be solved by the present invention is to provide an antenna device capable of improving the transmission / reception characteristics of vertically polarized waves coming from a direction horizontal to the ground without depending on the mounting angle of the window glass of the vehicle. It is.
  • an antenna device includes: An antenna device provided in a vehicle, The antenna device includes a first element, a second element, and a power feeding unit, An angle formed by an electric field plane generated in the first element and the second element and a long side direction of the vehicle is within a range of ⁇ 45 °. Moreover, in order to achieve the said objective, the vehicle-mounted antenna which concerns on this invention is equipped with this antenna apparatus.
  • the present invention since it does not depend on the mounting angle of the window glass of the vehicle and the antenna conductor is not bent toward the passenger compartment side, the vertical deflection coming from a direction horizontal to the ground rather than the conventional antenna device. Wave transmission / reception characteristics can be improved.
  • FIG. 1 is a perspective view of an antenna device 10 according to a first embodiment of the present invention.
  • the antenna device 10 is provided in a vehicle and includes a first element 11, a second element 12, and a power feeding unit 13.
  • a high-frequency current is supplied from the power supply unit 13 to the first element 11 and the second element 12, a current flows through the first element 11 and the second element 12.
  • a magnetic field is generated in the vicinity of the first element 11 and the second element 12, and an electric field surface is generated on a surface orthogonal to the magnetic field surface.
  • the electric field generated in the antenna device 10 is formed in parallel with the YZ plane in FIG.
  • the angle formed by the YZ plane in FIG. 1 and the long side direction (Y-axis direction) of the vehicle is within a range of ⁇ 45 °
  • the electric field generated in the antenna device 10 and the ground plane in the vehicle are horizontal. Since the angle formed by the electric field plane of the vertically polarized wave 70 coming from a certain direction (Y-axis direction) is within a range of ⁇ 45 °, transmission / reception of the vertically polarized wave 70 flying from the horizontal direction (Y-axis direction) to the ground Improved characteristics.
  • the angle is preferably within the range of ⁇ 30 °, more preferably the angle within the range of ⁇ 20 °.
  • one end of each of the first element 11 and the second element 12 is an open end, and the first element 11 and the second element 12 are different from the open end.
  • the end portion is electrically connected to the power feeding unit 13.
  • the power feeding unit 13 is a part for connecting the antenna device 10 to a signal processing circuit (not shown).
  • the power feeding unit 13 is disposed at a portion where the first element 11 and the second element 12 intersect, but this is not restrictive as long as the antenna device 10 operates as a dipole antenna.
  • the antenna device 10 of the first embodiment when the antenna device 10 of the first embodiment is fed with a high-frequency current from the power feeding unit 13, the open end of the first element 11 is changed to the open end of the second element 12. And current is generated. At this time, the current distribution becomes stronger as it goes from the end of the first element 11 to the power supply unit 13, and the current distribution becomes weaker as it goes from the power supply unit 13 to the end of the second element 12. Ideally, the current is infinitely zero at the end of the first element 11 and the end of the second element 12.
  • the first element 11 includes a first current determined by a distribution of current flowing from the end of the first element 11 to the power feeding unit 13 and a direction extending from the end of the first element 11 to the power feeding unit 13.
  • a vector 41 is generated.
  • the second element 12 has a first distribution determined by a distribution of current flowing from the power feeding unit 13 to the end of the second element 12 and a direction extending from the power feeding unit 13 to the end of the second element 12.
  • Two current vectors 42 are generated.
  • the direction of the combined current vector 40 obtained by combining the first current vector 41 and the second current vector 42 is an angle within a range of 90 ° ⁇ 45 ° with respect to the ground. If so, the transmission / reception characteristics of vertically polarized waves coming from a direction horizontal to the ground are improved.
  • the angle is preferably within the range of 90 ° ⁇ 30 °, more preferably the angle within the range of 90 ° ⁇ 20 °.
  • the direction of the generated current flows in the reverse direction, that is, flows from the open end of the second element 12 to the open end of the first element 11. Therefore, the directions of the first current vector 41, the second current vector 42, and the combined current vector 40 also change in an alternating manner.
  • the angle formed by the combined current vector 40 with respect to the ground includes not only the angle formed upward with respect to the ground but also the angle formed downward.
  • the combined current vector 40 is generated at the moment when the strength of the first current vector 41 and the second current vector 42 that change in an alternating manner is strongest, that is, the moment when current flows from one end to the other end. It is determined by the current vector at the moment.
  • the antenna device 10 may be provided on the side surface portion 22 of the support member 20 including the side surface portion 22 substantially parallel to the long side direction of the vehicle.
  • the antenna device 10 is illustrated as being provided on the side surface portion 22, but may be provided on the side surface portion 23.
  • the support member 20 is preferably formed of an insulating material such as resin, but is not limited to this as long as the antenna device 10 is formed and operates as an antenna.
  • the support member 20 may have a side surface portion 23 provided to face the side surface portion 22, or may have a front surface portion 21 substantially parallel to a surface to which the support member is attached.
  • the shape of the support member 20 may be a rectangular parallelepiped or the like, as long as the antenna device 10 can be arranged on either side in the left-right direction when viewed from the front of the support member 20. This is not the case if possible.
  • the support member 20 including the antenna device 10 may be provided above the window glass 30 of the vehicle, for example, in the vicinity of the inner surface of the window glass 30 of the vehicle such as a windshield or a rear glass.
  • the vicinity of the inner surface of the window glass 30 of the vehicle refers to a range that does not depart from the effect of the present invention. Specifically, it is the interior of the vehicle, on the surface of the window glass 30 and the window glass 30. An interior material that is usually within 1 m from the periphery.
  • the support member 20 including the antenna device 10 is provided on the inner surface of the window glass 30, the antenna device 10 may be in contact with the window glass 30 or may not be in contact with it.
  • the support member 20 including the antenna device 10 When the support member 20 including the antenna device 10 is disposed on the inner surface of the window glass 30 and at the periphery of the window glass 30, it improves reception characteristics and transmission characteristics of vertically polarized waves coming from a direction horizontal to the ground. This is preferable. Furthermore, since the antenna device is not formed so as to spread on the surface of the window glass 30, the appearance and the occupant's field of view are not impaired.
  • the support member 20 including the antenna device 10 When the support member 20 including the antenna device 10 is provided on the inner surface of the windshield of the vehicle, various in-vehicle sensors such as a rain sensor, an in-vehicle camera, and the like may be disposed in the support member 20 or in the vicinity of the support member 20. . Further, the support member 20 may be provided inside a bracket for storing various in-vehicle sensors, in-vehicle cameras, and the like. Further, the support member 20 may be a mounting base for the rearview mirror.
  • various in-vehicle sensors such as a rain sensor, an in-vehicle camera, and the like may be disposed in the support member 20 or in the vicinity of the support member 20.
  • the support member 20 may be provided inside a bracket for storing various in-vehicle sensors, in-vehicle cameras, and the like. Further, the support member 20 may be a mounting base for the rearview mirror.
  • the support member 20 may include a plurality of antenna devices 10.
  • the antenna device 10 may be provided not only on the side surface portion 22 but also on the side surface portion 23.
  • a plurality of support members 20 including the antenna device 10 may be provided in the vehicle.
  • the antenna device 10 When a plurality of antenna devices 10 are arranged apart from each other in the vehicle width direction, the antenna device 10 operates as a diversity antenna that exhibits good transmission / reception characteristics for vertically polarized waves coming from either the left or right direction with respect to the traveling direction of the vehicle. Can do. Further, by providing a plurality of antenna devices 10, it may be operated as a MIMO (Multiple Input-Multiple Output) antenna.
  • MIMO Multiple Input-Multiple Output
  • the first element 11 is a linear or strip-shaped conductor having one end that is an open end.
  • the second element 12 is a linear or strip-shaped conductor whose one end is an open end.
  • the 1st element 11 and the 2nd element 12 are electrically connected to the electric power feeding part 13 by the edge part different from an open end.
  • “electrically connected” includes that the conductors are in direct contact with each other to be connected in a direct current, and that the conductors are separated from each other by a predetermined distance to form a capacitor and are electrically connected at a high frequency.
  • FIG. 4 illustrates the case where the first element 11 and the second element 12 are linear, but the first element 11 and the second element 12 have a bent shape such as a meander shape. It may also have a branch point. Further, as shown in FIG. 5, the second element 12 may be folded back toward the open end side of the first element 11 such as a U shape.
  • At least a part of the first element 14 may be a wide conductor. At this time, it is preferable that at least a part of the first element which is a wide conductor is provided on a surface adjacent to the side surface portion.
  • the first element that is a wide conductor may be provided on the front portion 21 of the support member 20, may be the mounting portion 26 that faces the front portion, may be the top portion 24, and may be the bottom portion 25. It may be.
  • the first element 14 is a wide conductor
  • at least a part of the first element 14 is a wide conductor, and is provided along the end side of the side surface portion 22 where the second element 12 is provided.
  • the first element 14 is a ground conductor. If it is, it will become possible to supply electric power to the antenna device 10 with a simpler configuration.
  • At least a part of the first element 14 is a wide conductor, and at least a part of the end of the wide conductor is along the end side of the side surface portion 22 where the second element 12 is provided.
  • the antenna element 10 When the antenna element 10 is provided, the current generated in the antenna device 10 is generated from the vicinity of the tip 15 on the end of the side surface 22 of the first element 14 to the open end of the second element 12.
  • the combined current vector generated in the antenna device 10 includes a current distribution flowing from the tip 15 of the first element 14 to the power feeding unit 13 and a power feeding from the tip 15 of the first element 14.
  • the first current vector 43 determined by the direction extending to the portion 13, the distribution of current flowing from the power supply portion 13 to the end of the second element 12, and the power supply portion 13 to the end of the second element 12 It is determined by the combined current vector with the second current vector 44 determined by the direction of the current.
  • the antenna device 10 When the antenna device 10 is disposed on the support member 20, when the direction of the combined current vector 40 generated in the antenna device 10 is an angle within a range of 90 ° ⁇ 45 ° with respect to the ground, from the direction horizontal to the ground Since the transmission / reception characteristics of incoming vertically polarized waves are improved, the transmission / reception characteristics of vertically polarized waves arriving from the direction horizontal to the ground can be improved regardless of the position where the antenna device 10 is attached or the deviation of the angle. Robustness can be improved. Note that high position robustness means that even if the arrangement positions of the first element 11 and the second element 12 are deviated, the influence on the operation and directivity of the antenna device 10 is low. In addition, since the degree of freedom in deciding the arrangement positions of the first element 11 and the second element 12 is high, it is advantageous in that the installation position and attachment angle of the antenna device 10 can be freely designed.
  • the antenna device 10 can be widened.
  • FIG. 12 is a diagram showing an example of the configuration of the antenna device 10A in the case where the first element 14 at least a part of which is a wide conductor is used as a ground conductor. Since the antenna device 10A includes the first element 14 that is at least partially a wide conductor, the antenna device 10A can have a wider bandwidth. At least a part of the edge of the first element 14, at least a part of which is a wide conductor, is provided along the edge of the side part 22 where the second element 12 is provided.
  • the antenna device 10 ⁇ / b> A includes an inverted F-shaped second element 12.
  • the inverted F-shaped second element 12 includes a power feeding element 81 and a radiation element 82 connected to the power feeding element 81 at a connection point 101.
  • the power feeding element 81 is in contact with the radiating element 82 to feed power.
  • the feed element 81 is, for example, a linear element having one end connected to the feed unit 13 and the other end connected to the radiating element 82 at the connection point 101.
  • the radiating element 82 has, for example, an L-shape having one end 102 connected to the first element 14 used as a ground conductor and the other end 103 opposite to the one end 102. Element.
  • the combined current vector generated in the antenna device 10A includes a first current 91 from the tip 15 of the first element 14 toward the end 102, a second current 92 from the feeder 13 toward the connection point 101, and an end. It is determined by the third current 93 from the portion 102 toward the end portion 103.
  • FIG. 13 is a diagram showing an example of the configuration of the antenna device 10B in the case where the first element 14, at least a part of which is a wide conductor, is used as a ground conductor. Since the antenna device 10B includes the first element 14 that is at least partially a wide conductor, the antenna device 10B can have a wider bandwidth. At least a part of the edge of the first element 14, at least a part of which is a wide conductor, is provided along the edge of the side part 22 where the second element 12 is provided.
  • the second element 12 includes a feeding element 83 and a radiating element 84.
  • the power feeding element 83 feeds power to the radiating element 84 in a non-contact manner.
  • the power feeding element 83 is, for example, an L-shaped element having one end connected to the power feeding unit 13 and an open end 109 opposite to the one end.
  • the feeding element 83 has a portion that runs in parallel with the radiating element 84 with a space that allows the radiating element 84 to be fed in a non-contact manner.
  • the radiating element 84 has, for example, an L shape having one end 104 connected to the first element 14 used as a ground conductor and the other end 105 opposite to the one end 104. Element.
  • the combined current vector generated in the antenna device 10B includes a first current 95 from the tip 15 of the first element 14 toward the end 104, a second current 94 from the feeder 13 toward the open end 109, and an end. It is determined by the third current 96 from the portion 104 toward the end portion 105.
  • FIG. 14 is a diagram illustrating an example of the configuration of the antenna device 10 ⁇ / b> C when the first element 14, at least a part of which is a wide conductor, is used as a ground conductor. Since the antenna device 10 ⁇ / b> C includes the first element 14, at least a part of which is a wide conductor, the bandwidth of the antenna device 10 ⁇ / b> C can be increased. At least a part of the edge of the first element 14, at least a part of which is a wide conductor, is provided along the edge of the side part 22 where the second element 12 is provided.
  • the second element 12 includes a feeding element 85 and a radiating element 86.
  • the power feeding element 85 feeds power to the radiating element 86 in a non-contact manner.
  • the power feeding element 85 is, for example, an L-shaped element having one end connected to the power feeding unit 13 and an open end 106 opposite to the one end.
  • the feeding element 85 has a portion that runs parallel to the radiating element 86 with an interval that allows the radiating element 86 to be fed in a non-contact manner.
  • the radiating element 86 is, for example, a U-shaped element having a first open end 107 farther from the open end 106 and a second open end 108 closer to the open end 106.
  • the second open end 108 is an end portion on the side electrically connected to the power feeding element 85.
  • the combined current vector generated in the antenna device 10 ⁇ / b> C includes a first current 97 from the tip 15 of the first element 14 toward the open end 106 of the feed element 85, and a first open end 107 from the second open end 108. Determined by the second current 98 toward.
  • the second element 12 when the first element 14, at least a part of which is a wide conductor, is used as a ground conductor and the power feeding unit 13 is provided on the short side of the first element 14, the second element 12 However, a form having a conductor portion that runs parallel to the short side of the first element 14 and a conductor portion that runs parallel to the long side of the first element is preferable. By providing the second element 12 with this configuration, it is possible to widen the bandwidth of the antenna device 10.
  • the second element 12 has a conductor portion 12 a that runs parallel to the short side 14 a of the first element 14 and a conductor portion 12 b that runs parallel to the long side 14 b of the first element 14.
  • the first element 14 is a rectangular wide conductor having a short side 14a and a long side 14b, and is arranged in parallel to the YZ plane.
  • the short side 14a is provided along the end side of the side part 22 in which the second element 12 is provided.
  • the power feeding unit 13 is provided on the short side 14a.
  • the conductor portion 12a is an L-shaped element having one end connected to the power supply unit 13, and is formed in parallel to the XY plane.
  • the conductor portion 12b is a linear element connected to the other end of the conductor portion 12a, and is formed in parallel with the ZX plane.
  • the conductor portion 12a is disposed along the short side 14a, and the conductor portion 12b is disposed along the long side 14b.
  • the current flowing from the power supply unit 13 through the first element 14 of the ground conductor flows corresponding to the current flowing through the second element 12, and therefore flows along the short side 14a and then along the long side 14b. Flowing.
  • the diagonal current path 16 of the first element 14 of the ground conductor is realized, various current path lengths in the diagonal direction can be taken, and the antenna device has a wide bandwidth.
  • FIG. 16 is a diagram illustrating an example in which the second element 12 does not have a conductor portion that runs parallel to the short side 14 a of the first element 14.
  • the 2nd element 12 is a figure which shows an example of the form which has the conductor part 12c perpendicular
  • the power feeding unit 13 is provided on the long side 14b.
  • the conductor portion 12c is a linear element having one end connected to the power supply unit 13, and is formed in parallel to the ZX plane.
  • the conductor portion 12d is a linear element connected to the other end of the conductor portion 12c, and is formed in parallel to the ZX plane.
  • the current flowing from the power supply unit 13 through the first element 14 of the ground conductor flows corresponding to the current flowing through the second element 12, and thus flows along the long side 14b.
  • the current path 17 in the longitudinal direction parallel to the long side 14b of the first element 14 of the ground conductor is generated, so that the broadband property of the antenna device is hardly exhibited.
  • FIG. 7 is a schematic diagram showing an antenna device 50 according to a second embodiment of the present invention.
  • the antenna device 50 includes a first element 54 having one end that is an open end and the other end connected to the element 55, and an element 55 that has one end connected to the element 54 and the other end connected to the power feeding unit 53.
  • a second element configured by an element 51 having one end connected to the power feeding portion 53 and the other end connected to the element 57, and an element 57 having one end connected to the element 56 and the other end being an open end.
  • An element 52 and a power feeding unit 53 are provided.
  • the first element 51 and the second element 52 flow through the first element 51 and the second element 52 when a high-frequency current is supplied from the power supply unit 53.
  • a magnetic field is generated in the vicinity of the first element 51 and the second element 52, and an electric field surface orthogonal to the magnetic field surface is generated.
  • the electric field surface generated in the antenna device 50 is formed in parallel with the YZ plane in FIG.
  • the angle formed by the YZ plane in FIG. 7 and the long side direction (Y-axis direction) of the vehicle is within a range of ⁇ 45 °
  • the vehicle comes from the direction horizontal to the ground (Y-axis direction).
  • the angle formed by the electric field surface of the vertical polarization 70 is within a range of ⁇ 45 °, transmission / reception characteristics of the vertical polarization 70 flying from the horizontal direction (Y-axis direction) to the ground are improved.
  • the angle is preferably within the range of ⁇ 30 °, more preferably the angle within the range of ⁇ 20 °.
  • an element 54 whose one end is an open end and the other end is connected to the element 55, and an element 55 whose one end is connected to the element 54 and whose other end is connected to the power feeding unit 53, A first element 51 having one end connected to the power feeding portion 53 and the other end connected to the element 57, and an element 57 having one end connected to the element 56 and the other end being an open end.
  • the configured second elements 52 are each electrically connected to the power feeding unit 53.
  • the power feeding unit 53 is a part for connecting the antenna device 50 to a signal processing circuit (not shown). In FIG. 8, the power feeding unit 53 is disposed between the element 55 and the element 56, but this is not a limitation as long as the antenna device 50 operates as a dipole antenna.
  • the element 54 has a first current vector determined by a distribution of current flowing from the end of the element 54 to the portion connected to the element 55 and a direction extending from the end of the element 54 to the portion connected to the element 55. 61 occurs.
  • a second current vector 62 is generated, which is determined by a direction extending from a portion where the element 55 is connected to a portion where the element 56 and the element 57 are connected.
  • the element 57 includes a current distribution flowing from a portion where the element 56 and the element 57 are connected to the open end of the element 57, and a direction extending from the portion where the element 56 and the element 57 are connected to the open end of the element 57.
  • a third current vector 63 determined by is generated.
  • the first current vector 61 and the third current vector 63 are vectors whose directions are opposite to each other. Therefore, the combined current vector 60 of the antenna device 50 is a combined current vector 60 that is a combination of the difference between the first current vector 61 and the third current vector 63 and the second current vector 62.
  • the direction of the combined current vector 60 generated in the antenna device 50 is an angle within a range of 90 ° ⁇ 45 ° with respect to the ground, the vertical polarization coming from the direction horizontal to the ground
  • the transmission / reception characteristics of are improved.
  • the angle is preferably within the range of 90 ° ⁇ 30 °, more preferably the angle within the range of 90 ° ⁇ 20 °.
  • FIG. 8 illustrates the case where the element 54 and the element 57 are parallel, the element 54 and the element 57 may not be parallel and may be bent or branched.
  • the antenna device of the present invention when the antenna device of the present invention is attached to a vehicle, it is not necessary to provide the first element and the second element on the surface of the window glass of the vehicle. Therefore, the transmission / reception characteristics of vertically polarized waves arriving from the direction horizontal to the ground can be improved without the transmission / reception characteristics of vertically polarized waves arriving from the direction horizontal to the ground being dependent on the mounting angle of the window glass of the vehicle. .
  • the antenna device of the present invention does not need to bend the first element or the second element toward the passenger compartment as in Patent Document 2, it can be attached to the vehicle by a simple method.
  • each element of the antenna device 50 shown in FIG. 10 is 60 mm for the element 54, 20 mm for the element 55, 20 mm for the element 56, and 100 mm for the element 57.
  • FIG. 11 shows calculation results indicating directivity when the combined current vector 60 of the antenna device 50 shown in FIG. 10 is in the direction perpendicular to the ground (90 °), that is, in the z-axis direction.
  • Microwave Studio registered trademark
  • CST Microwave Studio
  • Table 1 and FIG. 11 show the gain when the combined current vector 60 of the antenna device 50 shown in FIG. 10 is perpendicular to the ground (90 °), that is, the Z-axis direction, and the antenna device 50 in the + Y-axis direction and ⁇ It is a calculation result of the difference with the gain when tilting in the Y-axis direction.
  • Table 1 and FIG. 11 show the gain when the combined current vector 60 of the antenna device 50 shown in FIG. 10 is perpendicular to the ground, that is, in the Z-axis direction, and the antenna device 50 in the + X-axis direction (depth direction with respect to the paper surface). ) And -X axis direction (frontward with respect to the paper surface), and the difference between the gain and the gain.
  • the gain is 2.42 dB lower than the gain when the direction of the combined current vector 60 is 90 °.
  • the gain is 1.72 dB lower than the gain when the direction of the combined current vector 60 is 90 °.
  • the gain is reduced by 3.00 dB relative to the gain when the direction of the combined current vector 60 is 90 °.
  • the gain is reduced by 3.00 dB relative to the gain when the direction of the combined current vector 60 is 90 °.
  • the tilt angle is 45. It can be seen that the gain decreases only 3.00 dB up to °.
  • the direction of the combined current vector 60 generated in the antenna device 50 is an angle within a range of 90 ° ⁇ 45 ° with respect to the ground, good transmission / reception with respect to vertically polarized waves coming from a direction horizontal to the ground It can be seen that the characteristics are obtained.
  • the present invention can be suitably used for antennas that transmit and receive vertically polarized radio waves in the 700 MHz band to 6 GHz band, such as antennas for ITS.

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Abstract

L'invention porte sur un dispositif d'antenne disposé dans un véhicule, ledit dispositif d'antenne étant caractérisé en ce qu'il est équipé d'un premier élément, d'un second élément et d'une unité d'alimentation électrique, l'angle formé par la direction du grand côté du véhicule et le plan du champ électrique généré par le premier élément et le second élément étant compris dans la plage de ±45°.
PCT/JP2015/077971 2014-10-03 2015-10-01 Dispositif d'antenne WO2016052709A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15847720.8A EP3203578B1 (fr) 2014-10-03 2015-10-01 Dispositif d'antenne
JP2016552164A JP6620752B2 (ja) 2014-10-03 2015-10-01 アンテナ装置
CN201580052996.3A CN106716711B (zh) 2014-10-03 2015-10-01 天线装置
US15/458,629 US10651535B2 (en) 2014-10-03 2017-03-14 Antenna device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-204635 2014-10-03
JP2014204635 2014-10-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/458,629 Continuation US10651535B2 (en) 2014-10-03 2017-03-14 Antenna device

Publications (1)

Publication Number Publication Date
WO2016052709A1 true WO2016052709A1 (fr) 2016-04-07

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Application Number Title Priority Date Filing Date
PCT/JP2015/077971 WO2016052709A1 (fr) 2014-10-03 2015-10-01 Dispositif d'antenne

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11024940B2 (en) 2017-04-24 2021-06-01 AGC Inc. Vehicle antenna and window glass for vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005435B (zh) * 2018-04-24 2022-08-05 Ａｇｃ株式会社 车辆用天线、附带车辆用天线的窗玻璃及天线系统
JP6820068B1 (ja) * 2019-07-25 2021-01-27 Ｎｅｃプラットフォームズ株式会社 無線装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028592A (en) * 1978-08-19 1980-03-05 Sony Corp Car antennae
JPH0983242A (ja) * 1995-09-13 1997-03-28 Sharp Corp 小型アンテナおよび光ビーコン、電波ビーコン共用車載フロントエンド
EP0797268A2 (fr) * 1996-03-19 1997-09-24 Matsushita Electric Industrial Co., Ltd. Dispositif d'antenne
US20040017316A1 (en) * 2002-07-23 2004-01-29 Comm. Research Lab., Ind. Admin. Institute Antenna apparatus
JP2004134881A (ja) * 2002-10-08 2004-04-30 Hitachi Kokusai Electric Inc 車載用アンテナ装置
US20050174291A1 (en) * 2004-02-09 2005-08-11 Susumu Inatsugu Composite antenna
US20050275598A1 (en) * 2004-06-09 2005-12-15 Denso Corporation Antenna system
JP2006086885A (ja) * 2004-09-16 2006-03-30 Matsushita Electric Ind Co Ltd アンテナ装置
DE102004051725A1 (de) * 2004-10-23 2006-04-27 Deutsche Telekom Ag Antenne
JP2006262355A (ja) * 2005-03-18 2006-09-28 Toyota Central Res & Dev Lab Inc アンテナ装置
JP2007068106A (ja) * 2005-09-02 2007-03-15 Auto Network Gijutsu Kenkyusho:Kk 車載用無線受信装置
US20080246672A1 (en) * 2007-03-08 2008-10-09 Harman Becker Automotive Systems Gmbh Roof antenna array for phase diversity system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347792B (en) * 1999-03-10 2001-06-06 Andrew Jesman Antenna
JP2001044730A (ja) 1999-08-02 2001-02-16 Central Glass Co Ltd 車両用ガラスアンテナ
US6437750B1 (en) * 1999-09-09 2002-08-20 University Of Kentucky Research Foundation Electrically-small low Q radiator structure and method of producing EM waves therewith
KR100871233B1 (ko) * 2000-10-26 2008-11-28 어드밴스드 오토모티브 안테나스, 에스.엘. 일체형 다목적 서비스 차량 안테나
US6441792B1 (en) * 2001-07-13 2002-08-27 Hrl Laboratories, Llc. Low-profile, multi-antenna module, and method of integration into a vehicle
TW549618U (en) * 2002-07-18 2003-08-21 Hon Hai Prec Ind Co Ltd Microstrip antenna
US7148848B2 (en) * 2004-10-27 2006-12-12 General Motors Corporation Dual band, bent monopole antenna
JP4075920B2 (ja) * 2005-04-04 2008-04-16 松下電器産業株式会社 受信装置
JP2009188912A (ja) * 2008-02-08 2009-08-20 Hitachi Cable Ltd 車載アンテナ
JP4951028B2 (ja) * 2009-05-28 2012-06-13 株式会社日本自動車部品総合研究所 車載アンテナ装置
JP5961027B2 (ja) * 2012-04-13 2016-08-02 株式会社日本自動車部品総合研究所 アンテナ装置
JP6181507B2 (ja) * 2012-10-24 2017-08-16 株式会社Ｓｏｋｅｎ アンテナ
US20150116161A1 (en) * 2013-10-28 2015-04-30 Skycross, Inc. Antenna structures and methods thereof for determining a frequency offset based on a signal magnitude measurement
WO2015159324A1 (fr) * 2014-04-17 2015-10-22 三菱電機株式会社 Dispositif d'antenne et procédé de fabrication d'antenne
JP6547311B2 (ja) * 2015-01-30 2019-07-24 Ａｇｃ株式会社 Ｍｉｍｏアンテナ及びｍｉｍｏアンテナ配置構造

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028592A (en) * 1978-08-19 1980-03-05 Sony Corp Car antennae
JPH0983242A (ja) * 1995-09-13 1997-03-28 Sharp Corp 小型アンテナおよび光ビーコン、電波ビーコン共用車載フロントエンド
EP0797268A2 (fr) * 1996-03-19 1997-09-24 Matsushita Electric Industrial Co., Ltd. Dispositif d'antenne
US20040017316A1 (en) * 2002-07-23 2004-01-29 Comm. Research Lab., Ind. Admin. Institute Antenna apparatus
JP2004134881A (ja) * 2002-10-08 2004-04-30 Hitachi Kokusai Electric Inc 車載用アンテナ装置
US20050174291A1 (en) * 2004-02-09 2005-08-11 Susumu Inatsugu Composite antenna
US20050275598A1 (en) * 2004-06-09 2005-12-15 Denso Corporation Antenna system
JP2006086885A (ja) * 2004-09-16 2006-03-30 Matsushita Electric Ind Co Ltd アンテナ装置
DE102004051725A1 (de) * 2004-10-23 2006-04-27 Deutsche Telekom Ag Antenne
JP2006262355A (ja) * 2005-03-18 2006-09-28 Toyota Central Res & Dev Lab Inc アンテナ装置
JP2007068106A (ja) * 2005-09-02 2007-03-15 Auto Network Gijutsu Kenkyusho:Kk 車載用無線受信装置
US20080246672A1 (en) * 2007-03-08 2008-10-09 Harman Becker Automotive Systems Gmbh Roof antenna array for phase diversity system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3203578A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11024940B2 (en) 2017-04-24 2021-06-01 AGC Inc. Vehicle antenna and window glass for vehicle

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JP6620752B2 (ja) 2019-12-18
EP3203578A4 (fr) 2018-05-23
EP3203578B1 (fr) 2020-12-30
CN106716711A (zh) 2017-05-24
EP3203578A1 (fr) 2017-08-09
CN106716711B (zh) 2020-03-06
JPWO2016052709A1 (ja) 2017-07-13
US10651535B2 (en) 2020-05-12

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